CN220003579U - Mixing element and static mixer with same - Google Patents

Abstract

The utility model provides a mixing element and a static mixer with the same, wherein the mixing element comprises: the V-shaped flow dividing plate comprises a first flow dividing blade and a second flow dividing blade which are arranged at an included angle, the first flow dividing blade is provided with a first flow through hole which is arranged in a penetrating manner, and the second flow dividing blade is provided with a second flow through hole which is arranged in a penetrating manner; the guide piece is arranged between the first flow dividing blade and the second flow dividing blade, the guide piece comprises a first guide blade and a second guide blade, the first guide blade and the first flow dividing blade are arranged at an included angle, the second guide blade and the second flow dividing blade are arranged at an included angle, the first flow through hole corresponds to the first guide blade, and the second flow through hole corresponds to the second guide blade. By the technical scheme provided by the utility model, the problems of low mixing efficiency and poor mixing effect of the static mixer in the related technology can be solved.

Description

Mixing element and static mixer with same

Technical Field

The utility model relates to the technical field of static mixers, in particular to a mixing element and a static mixer with the same.

Background

In chemical unit operations such as mixing, absorption, extraction, reaction, heat transfer, etc., uniform dispersion and thorough mixing of different fluids are required, and one of the engineering operations for this purpose is a stirring and mixing operation. After long-term development, the stirring device has been greatly improved, but certain defects such as leakage of shaft seal components, dead zone, low mixing uniformity, incapacity of continuous production, high power consumption of the device and the like still exist. Static mixers are referred to as dynamic mixers. By "static" is meant that there are no moving parts within the mixer, and that when the immiscible fluids are caused to flow within the mixer by means of the mixing elements assembled within the tube, the movement of the mixing elements, such as splitting, converging, rotating, etc., causes the individual fluids to be well dispersed and well mixed. The roles of the different unit structures assembled in the tube are mainly divided into 3 categories: (1) the mixing element acts as a cutting action on the fluid; (2) The mixing element changes the shape and the section of the flow channel to generate a shearing action; (3) The mixing element rotates the fluid to perform a self-stirring function. Compared with other equipment, the static mixer has the advantages of simple flow, low energy consumption, small volume, low investment, convenient operation, easy realization of continuous mixing process and the like, and is ideal equipment for fully mixing two or more fluids.

In the related art, the static mixer has problems of low mixing efficiency and poor mixing effect.

Disclosure of Invention

The utility model provides a mixing element and a static mixer with the same, which are used for solving the problems of low mixing efficiency and poor mixing effect of the static mixer in the related technology.

According to one aspect of the present utility model, there is provided a mixing element comprising: the V-shaped flow dividing plate comprises a first flow dividing blade and a second flow dividing blade which are arranged at an included angle, the first flow dividing blade is provided with a first flow through hole which is arranged in a penetrating manner, and the second flow dividing blade is provided with a second flow through hole which is arranged in a penetrating manner; the guide piece is arranged between the first flow dividing blade and the second flow dividing blade, the guide piece comprises a first guide blade and a second guide blade, the first guide blade and the first flow dividing blade are arranged at an included angle, the second guide blade and the second flow dividing blade are arranged at an included angle, the first flow through hole corresponds to the first guide blade, and the second flow through hole corresponds to the second guide blade.

Further, the first guide vane and the second guide vane are arranged at an included angle.

Further, the first end of the first guide vane extends to the first flow hole and is connected with the first splitter vane, and the first end of the second guide vane extends to the second flow hole and is connected with the second splitter vane.

Further, the second end of the first guide vane is connected to the second end of the second guide vane.

Further, the angle between the first splitter blade and the second splitter blade is between 30 ° and 60 °.

Further, the projection of the V-shaped splitter plate in the overlook direction is of a circular structure; and/or, the first guide vane and the second guide vane are circular flat plates.

According to another aspect of the present utility model, there is provided a static mixer comprising: a mixing tube having an inlet end and an outlet end; the mixing element is arranged in the mixing tube, the sharp angle of the V-shaped flow dividing plate of the mixing element is arranged towards the inlet end, and the mixing element is provided by the mixing element.

Further, the static mixer includes a plurality of mixing elements, which are sequentially arranged along the extending direction of the mixing tube.

Further, the placement orientations of two adjacent mixing elements are arranged at an included angle; and/or, two adjacent mixing elements are connected end to end.

Further, the projected shape of the V-shaped splitter plate in the extending direction of the mixing tube is matched with the hole pattern of the mixing tube; and/or the edge of the V-shaped flow dividing plate is fit or clearance fit with the inner wall of the mixing tube.

By adopting the technical scheme of the utility model, the mixing element comprises the V-shaped flow dividing plate and the flow guiding piece, and by arranging the mixing element in the static mixer, the liquid can form flow division when flowing through the first flow dividing blade and the second flow dividing blade, then the liquid can enter between the first flow dividing blade and the second flow dividing blade through the first flow dividing hole and the second flow dividing hole and flow through the first flow dividing blade and the second flow dividing blade to form turbulence, so that the mixing effect can be enhanced. Moreover, because the first guide vane is the contained angle setting with first splitter vane, and the second guide vane is the contained angle setting with second splitter vane, fluid can realize the upset when flowing through two guide vanes for fluid misce bene, so can promote mixing efficiency when promoting the mixing effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural diagram of a mixing element provided by an embodiment of the present utility model;

FIG. 2 is a schematic diagram of another view of a hybrid component according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a hybrid component according to an embodiment of the present utility model;

fig. 4 shows a schematic structural diagram of a static mixer according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. a V-shaped splitter plate; 11. a first splitter blade; 111. a first flow hole; 12. a second splitter vane; 121. a second flow hole;

20. a flow guide; 21. a first guide vane; 22. a second guide vane;

30. a mixing tube; 31. an inlet end; 32. an outlet end;

40. a mixing element.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, the embodiment of the present utility model provides a mixing element comprising a V-shaped splitter plate 10 and a flow guide 20, the V-shaped splitter plate 10 comprising a first splitter vane 11 and a second splitter vane 12 disposed at an angle, the first splitter vane 11 having a first flow aperture 111 disposed therethrough, the second splitter vane 12 having a second flow aperture 121 disposed therethrough. The guide piece 20 is arranged between the first splitter blade 11 and the second splitter blade 12, the guide piece 20 comprises a first guide blade 21 and a second guide blade 22, the first guide blade 21 is arranged at an included angle with the first splitter blade 11, the second guide blade 22 is arranged at an included angle with the second splitter blade 12, the first flow hole 111 is arranged corresponding to the first guide blade 21, and the second flow hole 121 is arranged corresponding to the second guide blade 22.

By using the mixing element provided in this embodiment, by installing the mixing element in the static mixer, the liquid is split when flowing through the first splitter vane 11 and the second splitter vane 12, and then the liquid enters between the first splitter vane 11 and the second splitter vane 12 through the first flow holes 111 and the second flow holes 121 and flows through the first guide vane 21 and the second guide vane 22 to form turbulence, so that the mixing effect can be enhanced. Moreover, since the first guide vane 21 and the first splitter vane 11 are arranged at an included angle, and the second guide vane 22 and the second splitter vane 12 are arranged at an included angle, the fluid can be turned over when flowing through the two guide vanes, so that the fluid is uniformly mixed, and the mixing efficiency can be improved while the mixing effect is improved.

It should be noted that most static mixers in the related art are composed of bent plates or twisted spiral sheets, and the bent plates or spiral sheets are mutually intersected and welded and fixed in a pipe, so that the static mixer has the problem of high welding difficulty. In the static mixer provided by the embodiment, the mixing elements in the static mixer are simple in structure, a plurality of mixing elements are not required to be welded in the static mixer, and the welding difficulty of the static mixer can be reduced.

It should be noted that, the first guide vane 21 is disposed at an included angle with the first splitter vane 11, and the second guide vane 22 is disposed at an included angle with the second splitter vane 12, which means that an included angle exists between the guide vane and the splitter vane, so that when fluid flows through the two guide vanes through the flow holes, the fluid can be turned over.

In the present embodiment, the first guide vane 21 and the second guide vane 22 are disposed at an angle. It should be noted that, the two guide vanes mentioned herein are disposed at an included angle, which means that an included angle exists between the two guide vanes, so that when fluid flows through the two guide vanes through the flow holes, the fluid can be turned up and down, and further the mixing effect can be further improved.

As shown in fig. 1 to 3, the first end of the first guide vane 21 extends to the first flow hole 111 and is connected to the first splitter vane 11, and the first end of the second guide vane 22 extends to the second flow hole 121 and is connected to the second splitter vane 12. By adopting the structure, the fluid can flow from the splitter blade to the guide blade directly, and the guide effect is better.

Specifically, the second end of the first guide vane 21 is connected to the second end of the second guide vane 22, and the liquid flowing through the two guide vanes directly meets each other, so that the liquid flowing through the two guide vanes is mixed more uniformly.

In the present embodiment, the angle between the first splitter vane 11 and the second splitter vane 12 is between 30 ° and 60 °, and the splitting effect is better.

Wherein the angle between the first splitter vane 11 and the second splitter vane 12 may be 30 °, 45 °, 60 °, and any other value between 30 ° and 60 °. In the present embodiment, the angle between the first splitter vane 11 and the second splitter vane 12 is 45 °.

In the present embodiment, the V-shaped splitter plate 10 has a circular structure in a projection in a top view, and the first guide vane 21 and the second guide vane 22 are circular flat plates, which facilitates the installation of the V-shaped splitter plate 10 into a circular pipe.

As shown in fig. 4, a further embodiment of the present utility model provides a static mixer comprising a mixing tube 30 and a mixing element 40, the mixing tube 30 having an inlet end 31 and an outlet end 32. The mixing element 40 is arranged in the mixing tube 30, the sharp angle of the V-shaped splitter plate 10 of the mixing element 40 being arranged towards the inlet end 31, the mixing element 40 being the mixing element provided above. Therefore, the static mixer can also improve the mixing efficiency while improving the mixing effect.

In the present embodiment, the static mixer includes a plurality of mixing elements 40, and the plurality of mixing elements 40 are sequentially arranged along the extending direction of the mixing pipe 30, so that the mixing effect can be further improved.

Wherein, the placement orientations of two adjacent mixing elements 40 are arranged at an included angle, and the two adjacent mixing elements 40 are connected end to end. By adopting the structure, high-efficiency and rapid mixing can be realized, fluid in the mixing pipe 30 can pass through multiple turbulence, the fluid is integrally mixed to be in a flow distribution-turbulence-flow distribution process, so that the mixing effect is enhanced, and through reasonably designing the angle of the blade and the size of the hole on the blade, the fluid can be turned up and down, so that the fluid can be uniformly mixed under the conditions of homogeneous phase and heterogeneous phase. The structure ensures that the fluids are respectively cut (a single fluid is firstly cut and is divided into two fluids, then the fluid of the next unit is cut, the number of the fluids increases to the power), and the fluids after cutting can be fully mixed by the mixing element, so that the mixing uniformity is improved.

Specifically, when the materials (fluids) which are firstly contacted and mixed in the mixing pipe flow through the mixing element, the fluids pass through the fluid cutting area (V-shaped splitter plate) for the first time, the fluids are uniformly split into two flows, the two flows enter into the reserved holes on the blades and enter into the fluid hedging mixing area (V-shaped splitter plate), then the fluids are contacted with the guide plates with special structures, the guide plates which are at a certain angle with the blades can turn the fluids at the lower layer to the upper layer, the fluids at the upper layer can turn the fluids at the lower layer through the guide plates, and enough turbulence can be generated in the area, so that the mixing is promoted, the mixed fluids are further cut and mixed through the units which are placed at 90 degrees, and the reciprocating circulation process is achieved. The special structure and the fluid channel can generate larger shearing force and rotating force, thereby realizing faster and even mixing effect, and not only can adjust the size of the upper hole of the blade and the angle between the hole and the guide plate according to practical application working conditions and conditions to change turbulence degree or flow velocity in the pipeline. In addition, the structural design of the blades is optimized, so that materials can flow fully in the mixing chamber, and dead zones and accumulation phenomena are avoided.

Specifically, the shape of the projection of the V-shaped splitter plate 10 in the extending direction of the mixing tube 30 is adapted to the hole pattern of the mixing tube 30, and the edge of the V-shaped splitter plate 10 is fitted or clearance-fitted to the inner wall of the mixing tube 30. In this embodiment, the edges of the V-shaped splitter plate 10 are in contact with the inner wall of the mixing tube 30 to ensure that the fluid flows entirely through the mixing elements to enhance the mixing effect.

The existing traditional mixing element structure is difficult to manufacture and is difficult to achieve efficient mixing effect. The degree of mixing in a static mixer depends on geometric design and operating parameters, so that the required uniformity and the required degree of mixing cannot be obtained in some cases, the mixing effect is uneven, the mixing effect is also required, the number of mixing elements is large, unnecessary manpower and resource waste are increased in the manufacturing process due to complex and tedious structure, a plurality of dead angles exist in the mixing process, the pipeline is easy to block, the device is not suitable for miniaturization, the flexibility is low, inconvenience is brought to the subsequent process, and the corresponding manufacturing cost of the mixing device is greatly increased. Compared with the static mixer in the related art, the static mixer provided by the embodiment has the advantages of low energy consumption, uniform mixing, simple structure and convenience in disassembly and maintenance.

It should be noted that the structure is not only suitable for the mixing pipeline, but also suitable for the strong heat exchange pipeline, and fluid is uniformly mixed in the mixing pipeline through multiple cutting and splitting, opposite flushing and converging.

The inventor compares the simulation results of the novel static mixer structure with the SK type static mixer structure under the heterogeneous condition, the fluid inlet flow velocity is 0.3m/s, and the pipe diameter is phi 10. The novel static mixer on the surface of the heterogeneous simulation result has much better mixing effect than the SK type mixing core structure, the same mixing effect SK approximately needs 6-7 groups of mixing elements, and the novel static mixer only needs 3-4 groups of mixing elements to be uniformly mixed, so that the novel static mixing core has good mixing effect and less mixing elements, and the corresponding productivity and mixing efficiency can be improved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A mixing element, the mixing element comprising:

the V-shaped splitter plate (10) comprises a first splitter blade (11) and a second splitter blade (12) which are arranged at an included angle, wherein the first splitter blade (11) is provided with a first flow hole (111) which is arranged in a penetrating way, and the second splitter blade (12) is provided with a second flow hole (121) which is arranged in a penetrating way;

the guide piece (20) is arranged between the first flow dividing blade (11) and the second flow dividing blade (12), the guide piece (20) comprises a first guide blade (21) and a second guide blade (22), the first guide blade (21) and the first flow dividing blade (11) are arranged at an included angle, the second guide blade (22) and the second flow dividing blade (12) are arranged at an included angle, the first flow dividing hole (111) corresponds to the first guide blade (21), and the second flow dividing hole (121) corresponds to the second guide blade (22).

2. Mixing element according to claim 1, wherein the first guide vane (21) is arranged at an angle to the second guide vane (22).

3. Mixing element according to claim 1, wherein a first end of the first guide vane (21) extends to the first flow opening (111) and is connected to the first splitter vane (11), and a first end of the second guide vane (22) extends to the second flow opening (121) and is connected to the second splitter vane (12).

4. A mixing element according to claim 3, wherein the second end of the first guide vane (21) is connected to the second end of the second guide vane (22).

5. Mixing element according to claim 1, wherein the angle between the first splitter blade (11) and the second splitter blade (12) is between 30 ° and 60 °.

6. A mixing element as claimed in claim 1, wherein,

the projection of the V-shaped splitter plate (10) in the overlook direction is of a circular structure; and/or the number of the groups of groups,

the first guide vane (21) and the second guide vane (22) are both circular flat plates.

7. A static mixer, the static mixer comprising:

a mixing tube (30) having an inlet end (31) and an outlet end (32);

-a mixing element (40) arranged inside the mixing tube (30), the sharp angle of the V-shaped splitter plate (10) of the mixing element (40) being arranged towards the inlet end (31), the mixing element (40) being a mixing element according to any one of claims 1 to 6.

8. Static mixer according to claim 7, characterized in that it comprises a plurality of said mixing elements (40), a plurality of said mixing elements (40) being arranged in succession along the extension of said mixing tube (30).

9. The static mixer of claim 8, wherein the static mixer is configured to mix the liquid,

the placement orientations of two adjacent mixing elements (40) are arranged at an included angle; and/or the number of the groups of groups,

two adjacent mixing elements (40) are connected end to end.

10. The static mixer of claim 7, wherein the static mixer is configured to mix the liquid,

the shape of the projection of the V-shaped splitter plate (10) in the extending direction of the mixing pipe (30) is matched with the hole type of the mixing pipe (30); and/or the number of the groups of groups,

the edge of the V-shaped flow dividing plate (10) is attached to or in clearance fit with the inner wall of the mixing tube (30).